Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 921 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle, bar and arrows (c) a straight line (d) a dot where wires meet
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) cell (c) resistor (d) diode
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
5. 5.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) one tall, one short bar (c) two equal parallel lines (d) a straight line
6. 6.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) motor (c) LED (d) battery
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) diode (d) wire
9. 9.True or false: a small empty box is the symbol for an LED. (a) False (b) True
10. 10.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with A inside (c) a small empty box (d) triangle against a bar
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) cell (c) battery (d) resistor
12. 12.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
13. 13.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a plain rectangle (c) a dot where wires meet (d) many long-short pairs
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) motor (c) wire (d) voltmeter
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) LED (c) motor (d) cell
16. 16.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) resistor (d) battery
18. 18.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
19. 19.Which drawing is the symbol for a diode? (a) triangle against a bar (b) many long-short pairs (c) two or more cell symbols (d) a circle with a cross
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) resistor (d) junction
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) junction (c) ammeter (d) voltmeter
22. 22.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a dot where wires meet (d) one tall, one short bar
23. 23.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.Which drawing is the symbol for a switch? (a) a circle with a cross (b) two or more cell symbols (c) triangle, bar and arrows (d) a line lifted at a gap
26. 26.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a small empty box (c) a circle with an X in it (d) a circle with A inside
27. 27.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) bulb (c) capacitor (d) cell
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) switch (d) diode
30. 30.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) wire (c) cell (d) bulb
31. 31.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
33. 33.True or false: a small empty box is the symbol for a wire. (a) False (b) True
34. 34.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a straight line (d) a circle with an X in it
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) motor (c) junction (d) bulb
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) voltmeter (d) switch
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) cell (c) motor (d) bulb
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
40. 40.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False

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